Method and system for removing noise by using change in activity pattern

Abstract

A noise removal method and system using a change in activity pattern, in which it is recognized that noise components exist in different frequency bands and different filters for removing noise are stored according to each activity pattern, thereby optimally removing the noise components. A method of removing noise by using a change in an activity pattern includes: recognizing an activity pattern of the subject using an activity sensor; sensing a first bio signal corresponding to the activity pattern from the subject using an electric potential sensor; recognizing a noise generation pattern according to the activity pattern by analyzing a noise component for each section of the first bio signal; selecting filter information for each section according to the noise generation pattern; storing the filter information selected for each section in association with the activity pattern; and removing noise from a second bio signal sensed from the subject by applying the stored filter information.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of Korean Patent Application No. 2005-94310, filed on Oct. 7, 2005, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a method and system for removing noise by using a change in activity pattern, in which it is recognized that an occupation pattern of a noise component included in a bio signal is different according to the activity pattern of the subject and different filters for removing noise according to each activity pattern are stored, thereby optimally removing the noise components.[0004]2. Description of Related Art[0005]A general sensing device for measuring a bio signal is attached to a subject such as a human and directly senses a bio signal such as an electrocardiogram signal of the subject. The sensed bio signal is used as data for determining ...

AI Technical Summary

Benefits of technology

The present invention provides a method and system for removing noise from a bio signal by using a change in activity pattern. The system includes an activity sensor to recognize the subject's activity pattern, an electric potential sensor to sense the bio signal, and a filter information generation unit to identify the noise generation pattern and select filter information for each section of the bio signal. The system also includes a filtering unit to apply the stored filter information to the second bio signal and remove the noise. The technical effect of this invention is to quickly and accurately remove noise from a bio signal, allowing for better analysis and interpretation of the signal's data.

Problems solved by technology

Also, when a patch type electric potential measurement sensor, an electrocardiogram signal is weak and relatively susceptible to an electromyogram signal and baseline drift.

This may be a problem generated in using any minimized electrodes.

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